Cushion sickle-head.



S. R. LAMONT.

CUSHION SICKLE HEAD.

APPLICATION HLED Aue.ao,19l6.

Patented July 1U, 1917.

@047 e] abo/vf! SYDNEY a.' LaMoN'r, or recoil/ra, WasHINeToN.

CUSHION SIGKLE-HEAD.

Specicaton of Letters Patent. .lP-entd July 109 191% applicati@ fue@ August so, 191e. serial No. 117,574..

To all whom t may concern:

Be it known that I, SYDNEY R. LAMONT, a citizen of the United States, residing at Tacoma, in the county of Pierce,State of Vas'hington, have invented certain new and useful improvements in Cushion Sickle- Heads, of which the following is a specification. i

rFhis invention relates to the connection between the pitman and sickle head of a reaping or mowing machine and has for its object to provide a cushion between the said parts whereby shocks in either direction will "be absorbed without breakage of any part of the machine. Further objects are to provide an adjustment for the said cushion; to provide a cheap and effective apparatus and one which can be readily and quickly repaired if damaged in any way.

attain these and other objects by the devices, mechanisms and arrangements illustrated in the accompanying drawings, in which- Figure 1 is a plan of a sickle head showing my device applied thereto; Fig. 2 is a side elevation of a portion thereof, part of the web being broken away to reveal the parts beyond; Fig. 3 is a bottom view of a portion thereof; Fig. 4 is a vertical longitudinal section of my device; Fig. 5 is a vertical cross-section of my device;and Fig. 6 is a plan of a variation of my device.

Similar numerals of reference refer to similar parts throughout the several views.

Ilhe sickle head l is provided with a stilfening flange 2 as is usual, and said flange 2 is provided with two lugs 8 and 4 extending laterally therefrom in line with each other and suitably spaced apart. The said parts 1, 2, 3 and 4 are all formed of one integral piece. @ne such lug 3 is provided with a smooth-finished hole 5 therethrough and the other lug 4 with a smaller screwthreaded hole 6 coaxial with the hole 5. A rod 7, of circular cross-section, is provided with a shoulder 8, adapted to fit in the hole 5 of the lug 3, and a squared head 9, whereby it may be turned, at one end and a screwthreaded portion at the other end, said portion being adapted to fit into the screwthreaded hole 6 in the lug 4. The ro'd 7 lies parallel with the base of the sickle head. A spherical body orball 10 is mounted on the rod 7 said rod 7 passing freely through av suitable hole in the ball 10. Theball 10 is also provided with a pair of shoulders `11 extending around' the holes through which the rod 7 passes7 each such shoulder 11 passing downward and ending in a flat foot or surface 12 adapted to engage theA upper surface'of the sickle head 1 and to keep the ball'from turning on the rod 7. The two said shoulders and their feet 12 are joined by a web 13 on the under side of the ball 10. Aresilient cushion 14 is mounted on the rod .7 on each side of the ball 10, one such cushion being placed between the shoulders 8` andll above described, and the other cushion being placed between the shoulder 11 and the lug 4. rEhe rod 7 passes centrally through the said resilient cushions 14.

rlfhe pitman whereby the sickle head1 is reciprocated is constructed in two complementary parts 15 secured together by a bolt 16 to form asingle body. Each part has one-half of the hollow spherical socket 17 formed on its end, as shown, said socket being so formed that when the parts 15 are put into position they` inclose and form a socket for the ball 10, suitable openings being provided in said socketfor the shoulders 11 surrounding the rod 7.

Thus it will be seen that the pitman engages and reciprocates the ball 10 and that the ball transmits the motion through one of the resilient cushions 14 to the lugs 3 or 4 and thus to the sickle head. l

It will be observed that the rod 7 is stationary on the sickle head 1 and that the ball slides on it andl that its adjustment, by screwing it into or out of the lug 4, causes the resilient cushions 14 to be more or less compressed between the shoulder 8 and the lug 4, thus compressing and limiting the motion of the ball 10 on the rod 7 under any given strain.

ln the variation shown in Fig. 6,the sickle head 21 is provided with a stiffening flange 22 and a second parallel flange 23, said flanges being joined together by across lug 24, which has a hole throughY it. The ball 25 is mounted on a sliding base 26, suitably guided in undercut grooves in the flanges 22 and 23, and has a bracing flange 27 joining it to the said base 26. A bolt 28 extends from the ball 25 through the hole in the cross lug 24 and is provided with a nut 29 at its other end. A pair of springs, or other resilient bodies, 30, are mounted around the bolt 28 on each side of the lug 24, one such spring engaging the ball 25 and the other spring engaging the nut 29. The pitman n is not shown in the drawing, since its funcktion and connection is plain.

from turningV thereon; .a rod engaging the ball and the ug; and resilient means mount- ;ed onrthe rod and engaging the lug to resist the motion of the ball relatively .to the sickle head. Y

` 2. In a cushion siekle'head, .the combination with a pitman having a socket formed on its endya sickle head having a pair of spaced lugs extending therefrom;l a rod passing throughv one of said lugs Akand screwing into ,the otherlug, and having a cppieg if"mais,,patentY may he 'obtained for Y shoulder,- orined thereon adjacent said first lugya ball loosely mounted on said rod and sliding therealong,fsaid b all fitting into the head, the combinasocket on the pitinan, and having means formed `thereon to prevent it from turning on the rod; and resilient means interposed between said ball and the rod-shoulder on the one side and the ball and the lug on the .other side, whereby motion of said ball along said rod is resisted.

3. In a cushion sickle head, the combina- `tion with a pitinan having a socket formed i on its end;V .a sickle head having a pair of spaced lugs extending therefrom; a rod passing through one oi said lugs and screwing into the lsecond lug, and having a shoulder formed thereon adjacent the iii'st lug; A

a ball loosely mounted on said rod and slidable therealong, said ball iittiiig into the socket on the pitinan, and having a transverse 'base formed thereon and engaging vthe sickle head to prevent the ball turning on said rod; and resilient means interposed between said ball and the rod-shoulder on the one side and the ball and the second lug on the other side, whereby motion of said ball along said rod is resisted.

SYDNEY R. LAMONT.

ve cents each, by addressing the Commissioner of Patents, `Washington, 1). C. i 

